Sully and the Temperature - Resitivity Sensor

The temperature-resistivity instrument measures, in real-time, the temperature of black smoker fluids (>400°C) and the resistivity of the fluids as a proxy for chlorinity. Vents at Axial Seamount are boiling, producing fluids that are very low in chloride content (salts). Boiling is an important processes because it enhances precipitation of precious metals in seafloor black smokers.